api-design-first skillA
api-design-first is agent-read markdown (skill) from jpeetz/agent-skills: Design-first API development skill. Generates OpenAPI 3.1 specifications, enforces REST design best practices, validates endpoints, handles versioning, pagination, error formatting, authentication patterns, rate limiting, and idempotency. Activates when users say "design an API", "create OpenAPI spec", "API endpoint", "REST API design", "API contract", "Swagger/OpenAPI doc", "API versioning", "rate limiting", or "API security". Covers REST, GraphQL schema design, and gRPC proto generation with c.
Indexed from public GitHub and served as immutable, content-addressed versions. Install it pinned to an exact SHA-256 with the mdr CLI, and every file is verified against the hash recorded here before it reaches your agent. The deterministic audit below grades the latest version, and the same file always earns the same grade.
How to install
mdr add jpeetz/agent-skills/api-design-first@v1.0.0mdr add jpeetz/agent-skills/api-design-first@sha256:00453cb90235ce02Pin to a label to follow the author's releases, or to a sha256 to freeze the exact bytes forever. Either way the resolved hash is written to mdr.lock, and mdr install reproduces it on any machine.
[](https://markdownregistry.com/a/art_l7rncqyhbyfaw55a)
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Versions
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (12153 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
jpeetz/agent-skills · 5 stars · license none · pushed 2026-08-31 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_l7rncqyhbyfaw55a GET https://markdownregistry.com/api/v1/resolve?ref=jpeetz/agent-skills/api-design-first GET https://markdownregistry.com/api/v1/blob/00453cb90235ce02996cb6455ecbcf05e7f704bb807b9ada96664e7f0ec21599